| Anneliese Georgia Goulder | Secretary | 12 Jan 2005 | 13 Aug 2007 | British | - |
| Brian Chapman | Director | 17 Dec 2002 | 17 Jan 2003 | British | 74 years |
| Cornel John Howells | Secretary | 17 Jan 2003 | 12 Jan 2005 | British | - |
| David Cartlidge | Director | 17 Dec 2002 | 17 Jan 2003 | British | 82 years |
| David Cartlidge | Secretary | 17 Dec 2002 | 17 Jan 2003 | British | - |
| Graham Douglas Hall | Director | 24 Aug 1991 | 30 Nov 2001 | British | 81 years |
| Jeffrey Charles Jenkinson | Director | 24 Aug 1991 | 25 Mar 1992 | British | 87 years |
| John Brian Brown | Secretary | 13 Aug 2007 | 5 Oct 2009 | British | - |
| Paul Anthony Goulette | Director | 12 May 1995 | 31 Dec 1998 | British | 82 years |
| Peter Clarke | Director | 24 Aug 1991 | 18 Dec 2002 | British | 84 years |
| Peter Clarke | Secretary | 24 Aug 1991 | 26 Feb 1992 | British | - |
| Peter Clarke | Secretary | 1 Dec 2001 | 18 Dec 2002 | British | - |
| Peter Frank Keith Bennett | Director | 25 Mar 1992 | 12 May 1995 | British | 81 years |
| Prism Cosec Limited | Corporate Secretary | 31 Oct 2009 | 1 Nov 2014 | United Kingdom | - |
| Robert James Quy | Director | 25 Feb 1992 | 12 May 1995 | British | 82 years |
| Robert James Quy | Director | 1 Dec 2001 | 18 Dec 2002 | British | 82 years |
| Rosemary Goodwin | Secretary | 26 Feb 1992 | 30 Nov 2001 | British | - |